CA1040483A - Pneumatic seeder assembly - Google Patents
Pneumatic seeder assemblyInfo
- Publication number
- CA1040483A CA1040483A CA269,159A CA269159A CA1040483A CA 1040483 A CA1040483 A CA 1040483A CA 269159 A CA269159 A CA 269159A CA 1040483 A CA1040483 A CA 1040483A
- Authority
- CA
- Canada
- Prior art keywords
- hopper
- main body
- body portion
- distributor
- upper side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
ABSTRACT OF THE DISCLOSURE
Seed and/or fertilizer or similar particulate material is fed by a seed cup assembly or the like from a hopper to a main conduit through which air is passing at a rate sufficient to ensure that the material is picked up by the air stream and transported thereby. A main distributor head receives the material and feeds it pneumatically to a plurality of secondary distributor heads. A plurality of feed conduits extends from each secondary distributing head one to each of the seed outlets provided adjacent the furrow openers of the assembly. Each distributor head is provided with tapered restrictors which concentrate the material centrally so that it strikes the curved upper end centrally and is thus spread evenly to all of the conduits extending from the manifold thus ensuring even distribution of the material.
Seed and/or fertilizer or similar particulate material is fed by a seed cup assembly or the like from a hopper to a main conduit through which air is passing at a rate sufficient to ensure that the material is picked up by the air stream and transported thereby. A main distributor head receives the material and feeds it pneumatically to a plurality of secondary distributor heads. A plurality of feed conduits extends from each secondary distributing head one to each of the seed outlets provided adjacent the furrow openers of the assembly. Each distributor head is provided with tapered restrictors which concentrate the material centrally so that it strikes the curved upper end centrally and is thus spread evenly to all of the conduits extending from the manifold thus ensuring even distribution of the material.
Description
104~483 BACKGROUND OF THE INVENTION
-This invention relates to new and useful improve-ment~ in the conveying of particulate material such as seed grain, granular fertilizer and the like, from a hopper to conventional furrow openers.
Various attempts have been made to pneumatically deliver particulate material such as seed or fertilizer from a main hopper to the furrow openers of a conventional seed drill but great difficulty i8 experienced in ensuring substantially even distrubition of the material to each of the seed drills.
.
Other disadvantages include the provision of the seed hopper on the seed drill and as this varies in weight considerably from relatively full to relatively empty, ; difficulty has been experienced in maintaining a even depth of penetration of the furrow openers. When used with séed grain for example, the depth at which the seed is placed ..
below the surface of the ground is of particular importance to the growth of the seed.
;
SUMMARY OF THE INVENTION
~ m e present invention overcomes these disadvan-; ~ tages firstly by providing a wheeled component upon which the hoppers may be placed. This ensures that there is no ; variation of weight upon the seed drill a-sembly connected therebehind.
'~ .
-., -Secondly, dlstributor heads are utilized which include means to dLrect the seed axially through the dis-tributing heads 80 that it strikes a domed upper side centrally of the dome. This means that the seed will spread evenly from the center of the dome thus entering radially extending exits formed around the perimetrical wall of the dome. This ensures a much better distribution of the material to each of the exit conduits.
m e principle object and essence of the inven-tion is therefore to provide a device of the character de-scribed which enables the pneumatic placement of a parti-culate material, to be accomplished readily and easily and at the ~ame time ensures that a relatively even distribu-;~ tion of the material is provided.
,:
Another object of the invention is to provide a device of the character herewithin described which includes means in the distributor heads to direct the material to-.... . . . .
wards the vertical axis as it is passed upwardly through the distributing heads.
Still another object of the invention i5 to pro-vide a device of the character herewithin described in which the weight of the particulate material is carried by a separate componënt rather than being placed upon the seed drill assembly thereby facilitating the maintenance of an even depth of penetration of the furrow openers of the drill assembly.
.
, 1~4~483 Still another object of the invention is to pro-vide a device of the character herewithin described which includes a hopper carrying component upon which one or more hoppers may be supported with the seed drill assembly being towed therebehind so that the seed drill may be attached thereto by means of draft arms to keep the tillage imple-ment or seed drill level on rolling land.
A still further object of the invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture and otherwise well suited to the purpose for which it is d~gn~d.
With the foregoing objects in view, and other such objects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, our invention consists ossentially in the arrangement and construction of parts `
, ~ . . . .
all as hereinaftér more particularly described, reference ;~ bein~ had to the accompanying drawings in which:
'' ' ~ .
DESCRIPTION OF THE DRAWINGS
Figure 1 is a partially schematic side elevation of the device.
: .
Figure 2 is a top plan view of Figure 1.
Figure 3 i- an enlarged isometric partially sec-.
;.~` ` ~ 1040483 tioned view of one of the distributor heads.
Figure 4 is an enlarged cross sectional view of one embodiment of the feeding mechanism from the hopper to the pneumatic conveyor tube.
In the drawings like characters of reference indicate corresponding parts in the different figures.
" :
DETAI~ED DESCRIPTION
In the accompanying specification and drawings, the term ~seed drill" iq used but it should be understood that th~ lnclu~ ny tlll~g- equ~pm~nt whlch c~n b- u~ed for the deposition upon the ground or in the ground of any particulate material including seed grain~, granular fer-,~ , .
'.!1 "'' ~' ; tilizer and the like.
. ~ ,.
~ ~ ~ Proceeding therefore to describe the invention 1 ~ -in detail, reference to Figure 1 will illustrate a source of power such as a tractor 10 behind which is situated a hopper carrying component collectively designated 11.
Situated behind the component 11 i8 a piece of tillage equipment which, in this embodiment, represents a ~eed drill collectively designated 12.
Dealing first with the hopper carrying component 11, a substantially triangular frame 13 is provided having a conventional hitch 14 situated upon the front apex 15 of the frame and the component i8 detachably connected to the _5_ ., ~, .
~ 1040483 rear of the tractor as clearly shown in Figure 1.
A transverse axle 16 extends across the frame 13 towards the rear end thereof and ground engaging castor wheel assemblies 17 are supported by the axle and support the component in a conventional manner.
In this embodiment,,a centrifugal blower assem-bly is æhown schematically by reference character 18 and is mounted within the frame 13. This may be d~iven by an hydraulic motor l9 or by any other suitable means deriving ` its power from the tractor 10.
, , me centrifugal blower 18 produces the necessary volume of air at the appropriate pressure for the purposes hereinafter to be described and the volume and pressure of ,~ , course depends upon the design parameters of the assembly.
', A main air conduit 19 extends from the outlet of the blower 18 to a feeding device collectively designated . ~ - .
20 and then continues a~ conduit l9A to a main distributor ~' ,head collectively designated 48.
~/ ' A material holding hopper 21 is mounted within the chassis or frame 13 of the component 11 and is provided with a funnel type base 22 which is conventional in con-struction.
m e sealed holding hopper 21 is mounted within ;:
..
.
` 104~483 the chassis or frame 13 of the component 11 and is provid-ed with a funnel type base 22 which is conventional in construction.
me sealed feeding device 20 takes the form of a star feeder in this particular embodiment but of course it will be appreciated that other feeding means may be provid-ed such as an auger or worDl type feeder.
A casing 23 includes a rotatable star wheel 24 . ' ~o~rnalled upon an axle 25 and this may be rotated by any ~ convenient means. However it is preferable that it be ~ operated by one of the ground engaging castor wheel assem-,' bli-s 17 80 that the speed of rotation of the star feeder corresponds to the speed of~the device and varies therewith.
, ' . ' , : - The star feeder assembly is conventional and in-~ 'cludes the sealed side 26 and the clearance.side 27 in order ': to prevent the grain from being crushed as it is fed from '~ ' the base of the hopper to a main cylindrical outle't 28 ' formed on one side'of the casing 23 and communicating with ;~ the star'wheel 24. The main conduit 19 connects to one side 20: of outlet 28 and conduit.l9A to the other so that air under pressure is passing through this outlet 28 thereby picking up material.fed.to this outlet by the star wheel 24.
.
The hopper 22 is.sealed at the upper side thereof ; by means of cover 29 and a relatively small diameter conduitor tube 30 extends. from the main conduit 19 to the interior . . .
of the upper side of the hopper 22 above material contained therein thus acting as a compensator and equalizing pressure within the hopper and within the main conduit 19. This, together with the sealed hopper, prevents blow back from occurring past.the star wheel 24.
The tillage machine or assembly 12 is pulled be-hind the component 11 and is connected by a main drawbar 31 and a pair of draft arms 32 which are pivotally connected 80 that the tillage implement or assembly can remain level ~10 ~ on rolling ground and are not elevated by the component 11.
This of course is important particularly if seed is being planted 80 that the depth of planting is maintained.
:, :` ~ me aforementioned main distributor head 48 is :: mounted upon the seeder 12 and a plurality of secondary distributor heads 33 are also mounted on the seeder rear-wardly of the main distributor head 48. The construction : of the distributor heads 48 and 33 is similar and the de-.
: : ~ scription thereOf refers to both.
" :, . .
" .
:-.: . A substantially vertical tube 34 i8 secured to : ~ , the frame 35 of the seeder.l2 and extends upwardly there-. . from as clearly illustrated.. Insofar as the main distribu-~ . ~, :~ ,, .
~; .: tor head 48 i8 concerned, conduit l9A connects to the lower . end of the vertical tube 34.
~ , :
Flexible conduits 36 extend.from the upper end of the main distributor head 48 as will hereinafter be describ-.
- ~ :
104~)483 ed, each one connecting to the lower end of the relevant standard or tube 33 of`the secondary distributor heads.
In the present embodiment three such secondary distributor heads are shown so that three flexible conduits 36 extend from the upper end of the main distributor head 48.
Each secondary distributor head is connected to a group of seed or fertilizer outlets 37 each one of which is situated adjacent a furrow opener 38 and flexible con-duits 39 extend between the upper end of the secondary dis-tributor heads 33 to the seed outlets 37. A schematic view of these conduits is shown in Figure 2.
The construction of the main and secondary dis-tributor heads is shown in detail in Figure 3.
'' ': ' ~ ' ~ They are preferably made of plastic and include , a truncated cone body portion indicated by reference charac-ter 40 and having the wide end lowermost. m e distributor heads are situated vertically when in use.
. ' ` .~',, ', , .
A planar base 41 spans the lower wider end of the , main body portion 40 and the intake conduits l9A or 36 enter these bases 41 centrally as clearly illustrated. A collar `~ or band 42 is formed on the upper narrower end of the main body portion 40 to receive an annular wall 43 of the domed upper end collectively designated 44 which may engage over this narrow band 42 and may be connected thereto by a con-.. . .
_g_ ~.~)4~483 ventional means such as adhesive or other fastening devices.
This domed upper end includes the aforementioned annular wall 43,and a domed upper panel end 45.
A plurality of conduit attachment tubes 46 ex-tend radially around the annular wall 43 and the aforemen-tioned flexible conduits 36 or 39 may be connected to these in the usual way.
.~ Means are provided to direct the entrained ; material to the center of the domed portion 45 in order to ; 10' ensure substantially equal, distribution through the outlets 46, said means taking the form of a plurality of tapered : ' . rings 49 formed around the interior of the sloping wall of the main body portion 40. These annular rings incline in-; wardly as indicated by reference character 47 80 that the ~' thickness of the rings increases from the lower side there-of towards the upper side. This directs material passing ' through the main body portion, towards the vertical axis of . . . ~
'; the'main body portion and.centers it as it strikes the domed . surface 45. .~
~.
.~ 20 As mentioned previously, the air from the blower is of sufficient volume and pressure to entrain the material delivered from the'hopper by means of the star wheel 24 and to convey it pneumatically firstly from the outlet 28 of the.
hopper to the main distributor head 48, secondly from the main distributor head.48 to the secondary distributor heads :
.
`` 1~40483 33 and thirdly from the secondary distributor heads to the seed outlets 37 thus ensuring relatively equal distribution of the material to all of the seed outlets. The volume ,~ . .
and pressure of the air should.also be sufficient to ejects the material with enough force to énsure that the material, particularly if this material is seed, is spread out into the furrow formed by the furrow openers 38.
Finally reference should be made to the compensa-tor tube 30 which not only prevents blow back but facili-tates the accurate delivery of the required amount of ma-. terial from the hopper to the main conduit l9A.
; ~ Since variou~ modifications can be made in my in-vention as hereinabove described, and many apparent}y widely . different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all.matter contained in the accom-, :
~ - panying specification.shall be interpreted as illustrative ~ , :.; .
. : ~ only and not in a limiting sense.
. '. ' " ' ', ' ~
, --11-- ,
-This invention relates to new and useful improve-ment~ in the conveying of particulate material such as seed grain, granular fertilizer and the like, from a hopper to conventional furrow openers.
Various attempts have been made to pneumatically deliver particulate material such as seed or fertilizer from a main hopper to the furrow openers of a conventional seed drill but great difficulty i8 experienced in ensuring substantially even distrubition of the material to each of the seed drills.
.
Other disadvantages include the provision of the seed hopper on the seed drill and as this varies in weight considerably from relatively full to relatively empty, ; difficulty has been experienced in maintaining a even depth of penetration of the furrow openers. When used with séed grain for example, the depth at which the seed is placed ..
below the surface of the ground is of particular importance to the growth of the seed.
;
SUMMARY OF THE INVENTION
~ m e present invention overcomes these disadvan-; ~ tages firstly by providing a wheeled component upon which the hoppers may be placed. This ensures that there is no ; variation of weight upon the seed drill a-sembly connected therebehind.
'~ .
-., -Secondly, dlstributor heads are utilized which include means to dLrect the seed axially through the dis-tributing heads 80 that it strikes a domed upper side centrally of the dome. This means that the seed will spread evenly from the center of the dome thus entering radially extending exits formed around the perimetrical wall of the dome. This ensures a much better distribution of the material to each of the exit conduits.
m e principle object and essence of the inven-tion is therefore to provide a device of the character de-scribed which enables the pneumatic placement of a parti-culate material, to be accomplished readily and easily and at the ~ame time ensures that a relatively even distribu-;~ tion of the material is provided.
,:
Another object of the invention is to provide a device of the character herewithin described which includes means in the distributor heads to direct the material to-.... . . . .
wards the vertical axis as it is passed upwardly through the distributing heads.
Still another object of the invention i5 to pro-vide a device of the character herewithin described in which the weight of the particulate material is carried by a separate componënt rather than being placed upon the seed drill assembly thereby facilitating the maintenance of an even depth of penetration of the furrow openers of the drill assembly.
.
, 1~4~483 Still another object of the invention is to pro-vide a device of the character herewithin described which includes a hopper carrying component upon which one or more hoppers may be supported with the seed drill assembly being towed therebehind so that the seed drill may be attached thereto by means of draft arms to keep the tillage imple-ment or seed drill level on rolling land.
A still further object of the invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture and otherwise well suited to the purpose for which it is d~gn~d.
With the foregoing objects in view, and other such objects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, our invention consists ossentially in the arrangement and construction of parts `
, ~ . . . .
all as hereinaftér more particularly described, reference ;~ bein~ had to the accompanying drawings in which:
'' ' ~ .
DESCRIPTION OF THE DRAWINGS
Figure 1 is a partially schematic side elevation of the device.
: .
Figure 2 is a top plan view of Figure 1.
Figure 3 i- an enlarged isometric partially sec-.
;.~` ` ~ 1040483 tioned view of one of the distributor heads.
Figure 4 is an enlarged cross sectional view of one embodiment of the feeding mechanism from the hopper to the pneumatic conveyor tube.
In the drawings like characters of reference indicate corresponding parts in the different figures.
" :
DETAI~ED DESCRIPTION
In the accompanying specification and drawings, the term ~seed drill" iq used but it should be understood that th~ lnclu~ ny tlll~g- equ~pm~nt whlch c~n b- u~ed for the deposition upon the ground or in the ground of any particulate material including seed grain~, granular fer-,~ , .
'.!1 "'' ~' ; tilizer and the like.
. ~ ,.
~ ~ ~ Proceeding therefore to describe the invention 1 ~ -in detail, reference to Figure 1 will illustrate a source of power such as a tractor 10 behind which is situated a hopper carrying component collectively designated 11.
Situated behind the component 11 i8 a piece of tillage equipment which, in this embodiment, represents a ~eed drill collectively designated 12.
Dealing first with the hopper carrying component 11, a substantially triangular frame 13 is provided having a conventional hitch 14 situated upon the front apex 15 of the frame and the component i8 detachably connected to the _5_ ., ~, .
~ 1040483 rear of the tractor as clearly shown in Figure 1.
A transverse axle 16 extends across the frame 13 towards the rear end thereof and ground engaging castor wheel assemblies 17 are supported by the axle and support the component in a conventional manner.
In this embodiment,,a centrifugal blower assem-bly is æhown schematically by reference character 18 and is mounted within the frame 13. This may be d~iven by an hydraulic motor l9 or by any other suitable means deriving ` its power from the tractor 10.
, , me centrifugal blower 18 produces the necessary volume of air at the appropriate pressure for the purposes hereinafter to be described and the volume and pressure of ,~ , course depends upon the design parameters of the assembly.
', A main air conduit 19 extends from the outlet of the blower 18 to a feeding device collectively designated . ~ - .
20 and then continues a~ conduit l9A to a main distributor ~' ,head collectively designated 48.
~/ ' A material holding hopper 21 is mounted within the chassis or frame 13 of the component 11 and is provided with a funnel type base 22 which is conventional in con-struction.
m e sealed holding hopper 21 is mounted within ;:
..
.
` 104~483 the chassis or frame 13 of the component 11 and is provid-ed with a funnel type base 22 which is conventional in construction.
me sealed feeding device 20 takes the form of a star feeder in this particular embodiment but of course it will be appreciated that other feeding means may be provid-ed such as an auger or worDl type feeder.
A casing 23 includes a rotatable star wheel 24 . ' ~o~rnalled upon an axle 25 and this may be rotated by any ~ convenient means. However it is preferable that it be ~ operated by one of the ground engaging castor wheel assem-,' bli-s 17 80 that the speed of rotation of the star feeder corresponds to the speed of~the device and varies therewith.
, ' . ' , : - The star feeder assembly is conventional and in-~ 'cludes the sealed side 26 and the clearance.side 27 in order ': to prevent the grain from being crushed as it is fed from '~ ' the base of the hopper to a main cylindrical outle't 28 ' formed on one side'of the casing 23 and communicating with ;~ the star'wheel 24. The main conduit 19 connects to one side 20: of outlet 28 and conduit.l9A to the other so that air under pressure is passing through this outlet 28 thereby picking up material.fed.to this outlet by the star wheel 24.
.
The hopper 22 is.sealed at the upper side thereof ; by means of cover 29 and a relatively small diameter conduitor tube 30 extends. from the main conduit 19 to the interior . . .
of the upper side of the hopper 22 above material contained therein thus acting as a compensator and equalizing pressure within the hopper and within the main conduit 19. This, together with the sealed hopper, prevents blow back from occurring past.the star wheel 24.
The tillage machine or assembly 12 is pulled be-hind the component 11 and is connected by a main drawbar 31 and a pair of draft arms 32 which are pivotally connected 80 that the tillage implement or assembly can remain level ~10 ~ on rolling ground and are not elevated by the component 11.
This of course is important particularly if seed is being planted 80 that the depth of planting is maintained.
:, :` ~ me aforementioned main distributor head 48 is :: mounted upon the seeder 12 and a plurality of secondary distributor heads 33 are also mounted on the seeder rear-wardly of the main distributor head 48. The construction : of the distributor heads 48 and 33 is similar and the de-.
: : ~ scription thereOf refers to both.
" :, . .
" .
:-.: . A substantially vertical tube 34 i8 secured to : ~ , the frame 35 of the seeder.l2 and extends upwardly there-. . from as clearly illustrated.. Insofar as the main distribu-~ . ~, :~ ,, .
~; .: tor head 48 i8 concerned, conduit l9A connects to the lower . end of the vertical tube 34.
~ , :
Flexible conduits 36 extend.from the upper end of the main distributor head 48 as will hereinafter be describ-.
- ~ :
104~)483 ed, each one connecting to the lower end of the relevant standard or tube 33 of`the secondary distributor heads.
In the present embodiment three such secondary distributor heads are shown so that three flexible conduits 36 extend from the upper end of the main distributor head 48.
Each secondary distributor head is connected to a group of seed or fertilizer outlets 37 each one of which is situated adjacent a furrow opener 38 and flexible con-duits 39 extend between the upper end of the secondary dis-tributor heads 33 to the seed outlets 37. A schematic view of these conduits is shown in Figure 2.
The construction of the main and secondary dis-tributor heads is shown in detail in Figure 3.
'' ': ' ~ ' ~ They are preferably made of plastic and include , a truncated cone body portion indicated by reference charac-ter 40 and having the wide end lowermost. m e distributor heads are situated vertically when in use.
. ' ` .~',, ', , .
A planar base 41 spans the lower wider end of the , main body portion 40 and the intake conduits l9A or 36 enter these bases 41 centrally as clearly illustrated. A collar `~ or band 42 is formed on the upper narrower end of the main body portion 40 to receive an annular wall 43 of the domed upper end collectively designated 44 which may engage over this narrow band 42 and may be connected thereto by a con-.. . .
_g_ ~.~)4~483 ventional means such as adhesive or other fastening devices.
This domed upper end includes the aforementioned annular wall 43,and a domed upper panel end 45.
A plurality of conduit attachment tubes 46 ex-tend radially around the annular wall 43 and the aforemen-tioned flexible conduits 36 or 39 may be connected to these in the usual way.
.~ Means are provided to direct the entrained ; material to the center of the domed portion 45 in order to ; 10' ensure substantially equal, distribution through the outlets 46, said means taking the form of a plurality of tapered : ' . rings 49 formed around the interior of the sloping wall of the main body portion 40. These annular rings incline in-; wardly as indicated by reference character 47 80 that the ~' thickness of the rings increases from the lower side there-of towards the upper side. This directs material passing ' through the main body portion, towards the vertical axis of . . . ~
'; the'main body portion and.centers it as it strikes the domed . surface 45. .~
~.
.~ 20 As mentioned previously, the air from the blower is of sufficient volume and pressure to entrain the material delivered from the'hopper by means of the star wheel 24 and to convey it pneumatically firstly from the outlet 28 of the.
hopper to the main distributor head 48, secondly from the main distributor head.48 to the secondary distributor heads :
.
`` 1~40483 33 and thirdly from the secondary distributor heads to the seed outlets 37 thus ensuring relatively equal distribution of the material to all of the seed outlets. The volume ,~ . .
and pressure of the air should.also be sufficient to ejects the material with enough force to énsure that the material, particularly if this material is seed, is spread out into the furrow formed by the furrow openers 38.
Finally reference should be made to the compensa-tor tube 30 which not only prevents blow back but facili-tates the accurate delivery of the required amount of ma-. terial from the hopper to the main conduit l9A.
; ~ Since variou~ modifications can be made in my in-vention as hereinabove described, and many apparent}y widely . different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all.matter contained in the accom-, :
~ - panying specification.shall be interpreted as illustrative ~ , :.; .
. : ~ only and not in a limiting sense.
. '. ' " ' ', ' ~
, --11-- ,
Claims
THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
(1) A pneumatic assembly for the deposition with-in the ground of particulate material such as seed grain, granular fertilizer and the like and operable by a source of power such as a tractor; said assembly comprising in com-bination a material hopper carrying component detachably se-curable to said source of power, ground engaging wheels sup-porting said component, a seed drill assembly detachably connected to said hopper carrying component and ground en-gaging wheels supporting said seed drill assembly, means de-tachably connecting said seed drill assembly to said hopper carrying component, a particulate material holding hopper on said component having an outlet therein, a main distributing head on said pneumatic assembly, means for pneumatically conveying material from said hopper to said main distribut-ing head, at least one secondary distributor head on said pneumatic assembly, means for pneumatically conveying mater-ial from said main distributor head to said secondary dis-tributor head, a plurality of furrow opening means on said seed drill assembly for the deposition of said material with-in the ground, means for pneumatically conveying the material from said secondary distributing head to adjacent each of said furrow opening means, said distributor heads including a concavely domed upper side, said material entering said distributor heads from the base thereof and means in said distributor heads to direct the material towards the center of said domed upper side, said distributor heads comprising a main body portion having a substantially truncated cone shaped configuration situated substantially vertically when in use, said domed upper side being situated on the narrower upper end of said main body portion, a base spanning the wider lower end of said main body portion, said means for pneumatically conveying material being connected centrally to said base, said means in said distributor heads for cen-tering the material passing therethrough including at least one annular tapered ring formed within said main body por-tion, the cross section of said ring increasing in thickness from the lower side towards the upper side thus acting to funnel material towards the vertical axis of said main body portion and hence towards the center of said domed upper side and outlet means radially extending around the perimetrical wall of said domed upper side.
(2) In a pneumatic assembly for the deposition within the ground of particulate material such as seed grain, granular fertilizer and the like and operable by a source of power such as a tractor, said assembly including a material hopper carrying component detachably securable to the source of power, ground engaging wheels supporting said component, a seed drill assembly detachably connected to said hopper carrying component and ground engaging wheels supporting said seed drill assembly; the improvement comprising in com-bination a particulate material holding hopper on said com-ponent having an outlet therein, a main distributing head on said pneumatic assembly, means for pneumatically conveying material from said hopper to said main distributor head, at least one secondary distributor head on said pneumatic as-sembly, means for pneumatically conveying the material from said main distributor head to said secondary distributor head, a plurality of furrow opening means on the seed drill assembly for the deposition of said material within the ground, means for pneumatically conveying material from said secondary distributor head to adjacent each of said furrow opening means, said distributor heads including a concavely domed upper side, said material entering said distributor heads from the base thereof and means in said distributor heads to direct the material towards the center of said domed upper side, said distributor heads comprising a main body portion having a substantially truncated cone shaped config-uration situated substantially vertically when in use, said domed upper side being situated on the narrower upper end of said main body portion, a base spanning the wider lower end of said main body portion, said means for pneumatically con-veying material being connected centrally to said base, said means in said distributor heads for centering the material passing therethrough including at least one annular tapered ring formed within said main body portion, the cross section of said ring increasing in thickness from the lower side to-wards the upper side thus acting to funnel material towards the vertical axis of said main body portion and outlet means radially extending around the perimetrical wall of said dom-ed upper side.
(3) A distributor head for use with a pneumatic material conveying system for particulate material such as seed grain, granular fertilizer and the like; comprising in combination a substantially vertically situated, trunca-ted cone shaped main body portion, a base spanning the low-er wide end of said body portion and a concavely domed shap-ed upper side at the upper narrower end of said body por-tion, material inlet means substantially centrally of said base, a plurality of material outlet means extending radial-ly around the perimetrical wall of said dome shaped upper end and means therein to direct material entering at said base towards the central axis of said main body portion and towards the center of said dome shaped upper end to ensure substantially equal distribution of said material into said outlet means, said last mentioned means including at least one annular tapered ring formed within said main body por-tion, the cross section of said ring increasing in thickness from the lower side thereof towards the upper side thus act-ing to funnel material towards the vertical axis of said main body portion.
(4) The assembly according to Claim 1 which in-cludes pressure compensating means extending between said means for pneumatically conveying material and the interior of said hopper above the material contained therein, said hopper being sealed when in operation.
(5) The improvement according to Claim 2 which includes pressure compensating means extending between said means for pneumatically conveying material and the interior of said hopper above the material contained therein, said hopper being sealed when in operation.
(6) The device according to Claim 1 in which said ground engaging wheels of said component comprise castor wheel assemblies, said means detachably connecting said seed drill assembly to said component comprising at least a pair of draft arms one upon each side thereof and pivotally secured to said component and to said seed drill.
(1) A pneumatic assembly for the deposition with-in the ground of particulate material such as seed grain, granular fertilizer and the like and operable by a source of power such as a tractor; said assembly comprising in com-bination a material hopper carrying component detachably se-curable to said source of power, ground engaging wheels sup-porting said component, a seed drill assembly detachably connected to said hopper carrying component and ground en-gaging wheels supporting said seed drill assembly, means de-tachably connecting said seed drill assembly to said hopper carrying component, a particulate material holding hopper on said component having an outlet therein, a main distributing head on said pneumatic assembly, means for pneumatically conveying material from said hopper to said main distribut-ing head, at least one secondary distributor head on said pneumatic assembly, means for pneumatically conveying mater-ial from said main distributor head to said secondary dis-tributor head, a plurality of furrow opening means on said seed drill assembly for the deposition of said material with-in the ground, means for pneumatically conveying the material from said secondary distributing head to adjacent each of said furrow opening means, said distributor heads including a concavely domed upper side, said material entering said distributor heads from the base thereof and means in said distributor heads to direct the material towards the center of said domed upper side, said distributor heads comprising a main body portion having a substantially truncated cone shaped configuration situated substantially vertically when in use, said domed upper side being situated on the narrower upper end of said main body portion, a base spanning the wider lower end of said main body portion, said means for pneumatically conveying material being connected centrally to said base, said means in said distributor heads for cen-tering the material passing therethrough including at least one annular tapered ring formed within said main body por-tion, the cross section of said ring increasing in thickness from the lower side towards the upper side thus acting to funnel material towards the vertical axis of said main body portion and hence towards the center of said domed upper side and outlet means radially extending around the perimetrical wall of said domed upper side.
(2) In a pneumatic assembly for the deposition within the ground of particulate material such as seed grain, granular fertilizer and the like and operable by a source of power such as a tractor, said assembly including a material hopper carrying component detachably securable to the source of power, ground engaging wheels supporting said component, a seed drill assembly detachably connected to said hopper carrying component and ground engaging wheels supporting said seed drill assembly; the improvement comprising in com-bination a particulate material holding hopper on said com-ponent having an outlet therein, a main distributing head on said pneumatic assembly, means for pneumatically conveying material from said hopper to said main distributor head, at least one secondary distributor head on said pneumatic as-sembly, means for pneumatically conveying the material from said main distributor head to said secondary distributor head, a plurality of furrow opening means on the seed drill assembly for the deposition of said material within the ground, means for pneumatically conveying material from said secondary distributor head to adjacent each of said furrow opening means, said distributor heads including a concavely domed upper side, said material entering said distributor heads from the base thereof and means in said distributor heads to direct the material towards the center of said domed upper side, said distributor heads comprising a main body portion having a substantially truncated cone shaped config-uration situated substantially vertically when in use, said domed upper side being situated on the narrower upper end of said main body portion, a base spanning the wider lower end of said main body portion, said means for pneumatically con-veying material being connected centrally to said base, said means in said distributor heads for centering the material passing therethrough including at least one annular tapered ring formed within said main body portion, the cross section of said ring increasing in thickness from the lower side to-wards the upper side thus acting to funnel material towards the vertical axis of said main body portion and outlet means radially extending around the perimetrical wall of said dom-ed upper side.
(3) A distributor head for use with a pneumatic material conveying system for particulate material such as seed grain, granular fertilizer and the like; comprising in combination a substantially vertically situated, trunca-ted cone shaped main body portion, a base spanning the low-er wide end of said body portion and a concavely domed shap-ed upper side at the upper narrower end of said body por-tion, material inlet means substantially centrally of said base, a plurality of material outlet means extending radial-ly around the perimetrical wall of said dome shaped upper end and means therein to direct material entering at said base towards the central axis of said main body portion and towards the center of said dome shaped upper end to ensure substantially equal distribution of said material into said outlet means, said last mentioned means including at least one annular tapered ring formed within said main body por-tion, the cross section of said ring increasing in thickness from the lower side thereof towards the upper side thus act-ing to funnel material towards the vertical axis of said main body portion.
(4) The assembly according to Claim 1 which in-cludes pressure compensating means extending between said means for pneumatically conveying material and the interior of said hopper above the material contained therein, said hopper being sealed when in operation.
(5) The improvement according to Claim 2 which includes pressure compensating means extending between said means for pneumatically conveying material and the interior of said hopper above the material contained therein, said hopper being sealed when in operation.
(6) The device according to Claim 1 in which said ground engaging wheels of said component comprise castor wheel assemblies, said means detachably connecting said seed drill assembly to said component comprising at least a pair of draft arms one upon each side thereof and pivotally secured to said component and to said seed drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA269,159A CA1040483A (en) | 1977-01-05 | 1977-01-05 | Pneumatic seeder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA269,159A CA1040483A (en) | 1977-01-05 | 1977-01-05 | Pneumatic seeder assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1040483A true CA1040483A (en) | 1978-10-17 |
Family
ID=4107658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA269,159A Expired CA1040483A (en) | 1977-01-05 | 1977-01-05 | Pneumatic seeder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1040483A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834004A (en) * | 1987-04-29 | 1989-05-30 | Morris Rod-Weeder Co. Ltd. | Air seeder sample collector |
| US6227770B1 (en) | 1998-02-06 | 2001-05-08 | Flexi-Coil Ltd. | Conveyor tube and distributor header for air conveyor |
-
1977
- 1977-01-05 CA CA269,159A patent/CA1040483A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834004A (en) * | 1987-04-29 | 1989-05-30 | Morris Rod-Weeder Co. Ltd. | Air seeder sample collector |
| US6227770B1 (en) | 1998-02-06 | 2001-05-08 | Flexi-Coil Ltd. | Conveyor tube and distributor header for air conveyor |
| US6273648B1 (en) | 1998-02-06 | 2001-08-14 | Flexi-Coil Ltd. | Distribution header for air conveyor |
| US6290433B2 (en) | 1998-02-06 | 2001-09-18 | Flexi-Coil Ltd. | Distribution system for conveying air-entrained material |
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